Abstract
The yeast antagonist Candida guilliermondii and ultraviolet-C (UV-C) treatment were investigated for controlling infection following artificial inoculation with Penicillium expansum or Botrytis cinerea, or natural infection in pear fruit stored at 20°C. Applied separately, both C. guilliermondii and UV-C (5 kJ m−2) effectively inhibited decay caused by P. expansum or B. cinerea, and natural infection. The combination of C. guilliermondii and UV-C showed better control efficacy. Application of UV-C did not affect the growth of C. guilliermondii in pear fruit wounds, while UV-C induced a significant increase in the activities of chitinase, β-1,3-glucanase, catalase and peroxidase in pear fruit. The mechanism by which UV-C enhanced the biocontrol efficacy of C. guilliermondii may be related to the elicitation of defense responses in pear fruit. The combination of C. guilliermondii and UV-C radiation could be a promising method for the control of P. expansum and B. cinerea in pear fruit.
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Acknowledgments
This study was supported by China Agriculture Research System (CARS-29). We are all extremely grateful to Dr. Richard Bell in USDA-ARS-Appalachian Fruit Research Station, USA for his valuable suggestions and critical reading of the manuscript.
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Xu, L., Du, Y. Effects of yeast antagonist in combination with UV-C treatment on postharvest diseases of pear fruit. BioControl 57, 451–461 (2012). https://doi.org/10.1007/s10526-011-9400-8
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DOI: https://doi.org/10.1007/s10526-011-9400-8